FORESTRY
AGRICULTURAL STATISTICS AND ECONOMICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A car manufacturer advertises that its new subcompact models get 47 mpg. If
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H0 = 47Ha = 47
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H0 = 47Ha < 47
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H0 = 47Ha > 47
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H0 = 47Ha ≠ 47
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Explanation:
Detailed explanation-1: -The null and alternative hypotheses are two competing claims that researchers weigh evidence for and against using a statistical test: Null hypothesis (H0): There’s no effect in the population. Alternative hypothesis (Ha or H1): There’s an effect in the population.
Detailed explanation-2: -A type I error (false-positive) occurs if an investigator rejects a null hypothesis that is actually true in the population; a type II error (false-negative) occurs if the investigator fails to reject a null hypothesis that is actually false in the population.
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